Cleaning brush



FIG. 1 is a front, top and left-side perspective view of a cleaning brush, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is an enlarged detail view of area 8 in FIG. 1 .

The broken lines in the drawings illustrate the portions of the cleaning brush, which form no part of the claimed design.

The dash-dot-dash broken lines encircling the enlarged views are for annotative purposes only and form no part of the claim thereof. 

CLAIM The ornamental design for a cleaning brush, as shown and described. 